In "Wanderlust," Theroux stars opposite on-screen couple Aniston and Paul Rudd, playing Seth, the leader of a free-love commune in rural Georgia.

"I was thinking of him as a ­David Koresh-type figure, a comic cult leader who is so sincere in his insincerity," Theroux says of the role. "It's hard to play that douche-y a guy without cracking yourself up."